Where is the fuse for the air conditioning compressor in a 2002 Honda CRV. I know where the fuses are located, but don't know which one is for the a/c compressor since no fuse is labeled as such.

Question edited for clarity.
Question moved to Honda CRV.

The whole idea of using a Bypass Pulley is that it mimics the A/C compressor. You use the same belt. You can use the one that came off it, although you may as well put a new one on at the same time.

Hondas all have a fuse and blower relay located in the battery junction block. You can try swapping relays around if the fuse is good. Then verify the blower motor is good by disconnecting it and applying 12v directly to the motor. If this checks good, check for 12v at the blower connector while disconnected, (key on/fan on). Had a CRV in the shop a few days ago with the exact same issue, power to the motor but a weak ground signal. Replaced the blower resistor.

Brake light relay, don't think there is one for the brake lights.

in the fuse box, it may be marked, or in your owners manual. Chefk them all, then you will know if any fuses are bad. Usually its the sensor if the fuses are good.

View the attached website to see if your problem is in the fuse block that is under the hood immediately on top of the car's battery.


http://www.aircondition.com/tech/questions/83/No-Compressor-Operation-in-Volkswagen-New-Beetle

Also, the car's blower motor/climate control is controlled by the 25 amp fuse No. 25 in the fuse block located at the end of your dashboard.

Air conditioning systems sometimes leak down and won't turn on when the refrigerant levels are too low.

Lift the hood and listen to the A/C compressor while someone inside the car turns it on.

Does the compressor engage for a second or two and then shut off?
If it does....you need to have your system checked for leaks and recharged.

If the compressor never comes on. Look at the A/C compressor relay. It should be under the hood in a little fuse box with other relays and fuses. When you find this relay you need to see if it works. You can buy a replacement relay and swap it or take it to a parts store and have it checked. Relays are 10-30 dollars and you should have three or four relays of the same type so a real cheap test is to swap a identical relay from an electric window or a defroster. You should see them sitting right next to the A/C relay if you have them.

Good luck and be careful!

you should start by checking fuses,switch located on door pillar where door hinges are.sounds like a blown fuse or bad beeper,

Did you have compressor checked to make sure it is not the problem? Or did you just charge due to lack of cool air? Some parts stores can check it. Garages too.. If not the prob let me know..

Check all fuses, then check the wiring of the two 02 sensors on either side of the cat. converter. If the fuses and wiring are fine, it is likely one of the oxygen sensors; one is about $50 and the other is $200 (parts only). Use only Honda recommended parts, not BOSCH.